🚀 go-pugleaf

"Mortz" <rmorteo@hotmail.com> wrote in message
news:404f4eb5$1@newsgroups.borland.com...

> Now I'm trying to post messages or issue commands to those
> apps, however it seems like the window handle referes to
> different objects in the window trought time, how can I make
> sure to post the message to the App window directly?

An HWND always points to the same window at all times.  It does not change
value anytime during the lifetime of the window that it points to.  If your
main code is posting to different windows at different times, then you are
working with multiple HWNDs to begin with.

>      //A TTreeNode is passed to the constructor of the thread,
> it contains information about the spawned app

Why not just pass the NodeInfo* pointer itself directly, and leave the
TreeNode alone altogether?

>      while(!Terminated)
>      {
>           LookForWindowHandle(dataPtr); //this funciton is here
> in order to keep the handle updated (is the only way it worked :S)

You should not be re-retrieving the HWND anew each time, especially since a
HWND never changes anyway.  Also, a program may have multiple windows, your
current code would not be guaranteed to find the same HWND each time due to
Z-order changes and such.  You should only be retreive the desired window
once and then keep it.  Don't go re-looking for the window over and over.
It is unnecessary.

    void __fastcall ProcessWatcher::Execute()
    {
         NodeInfo *dataPtr = ...;
        LookForWindowHandle(dataPtr);
        while( !Terminated )
        {
            if( WaitForSingleObject(dataPtr->HProcess(), 10) !=
WAIT_TIMEOUT )
                break;
        }
    }


Gambit